William J. Eggleston III, right, a safety engineer with the U.S. Army Engineering and Support Center, Huntsville's Safety Office, explains a solar array project at Fort Campbell, Kentucky, to summer hire, Lorraine Rosello Del Valle; Erika Cosper, a Pathways Intern; and Jacob Morrison, a summer hire during a recent trip to Fort Campbell. Work on the solar array began in 2012 when the Fort Campbell Directorate of Public Works partnered with the Huntsville Center and the Department of Energy to put together a renewable energy plan for the post.